Patents by Inventor Takahide Onuma
Takahide Onuma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12151490Abstract: A printing apparatus includes a conveyance unit to convey a print medium, a belt, a tensioner, and a control unit. The belt transmits a driving force of a drive unit to the conveyance unit. The tensioner is displaceable and makes pressure contact with the belt to generate tension. The control unit controls driving of the drive unit in a state where the tensioner is in pressure contact with the belt. The control unit performs first control in which the drive unit is driven with a first control value, which is not based on a driving amount detected by a detection unit. Where the detection unit detects the driving amount, the control unit subsequently performs second control in which the drive unit is driven with a second control value, which is based on the driving amount detected by the detection unit.Type: GrantFiled: February 5, 2021Date of Patent: November 26, 2024Assignee: Canon Kabushiki KaishaInventors: Keisuke Arita, Takahide Onuma, Yasunori Matsumoto, Satoru Nitobe, Masashi Ito, Yuki Emoto
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Publication number: 20210252890Abstract: A printing apparatus includes a conveyance unit to convey a print medium, a belt, a tensioner, and a control unit. The belt transmits a driving force of a drive unit to the conveyance unit. The tensioner is displaceable and makes pressure contact with the belt to generate tension. The control unit controls driving of the drive unit in a state where the tensioner is in pressure contact with the belt. The control unit performs first control in which the drive unit is driven with a first control value, which is not based on a driving amount detected by a detection unit. Where the detection unit detects the driving amount, the control unit subsequently performs second control in which the drive unit is driven with a second control value, which is based on the driving amount detected by the detection unit.Type: ApplicationFiled: February 5, 2021Publication date: August 19, 2021Inventors: Keisuke Arita, Takahide Onuma, Yasunori Matsumoto, Satoru Nitobe, Masashi Ito, Yuki Emoto
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Patent number: 10549554Abstract: A platen includes: a supporting portion that can support a sheet; a suction unit that sucks the sheet in such a manner as to attach the sheet to the supporting portion; a first ink receiver that receives ink ejected downstream of the leading end of the sheet passing the supporting portion; and a second ink receiver that receives ink ejected upstream of the trailing end of the sheet passing the supporting portion.Type: GrantFiled: August 7, 2018Date of Patent: February 4, 2020Assignee: Canon Kabushiki KaishaInventors: Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Takahide Onuma, Yasunori Saito, Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Patent number: 10543698Abstract: A platen includes a plurality of supporting portions capable of supporting a sheet; negative pressure chambers, to which a negative pressure is supplied, so as to suck a sheet facing the supporting portions to the supporting portions; and an ink receiver that receives ink ejected from a printhead to the outside of the sheet supported by the supporting portions. The plurality of supporting portions are arranged in a sheet width direction transverse a sheet conveyance direction. The plurality of negative pressure chambers are disposed in a manner corresponding to the plurality of supporting portions, respectively.Type: GrantFiled: September 27, 2017Date of Patent: January 28, 2020Assignee: Canon Kabushiki KaishaInventors: Takahide Onuma, Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Yasunori Saito
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Patent number: 10183505Abstract: A printing apparatus includes a suction unit configured to allow a negative pressure, by which a sheet is sucked to a supporting portion, to act on the sheet; and ink receivers configured to receive ink ejected outside of the sheet. Waste ink ejected to the ink receivers is guided to a waste ink discharge port formed on an outer peripheral wall of a platen through waste ink channels. A sheet sucking mechanism configured to apply the negative pressure is disposed adjacent to the suction unit. A discharging mechanism configured to forcibly discharge waste ink outside of the platen is connected to the waste ink discharge port.Type: GrantFiled: May 20, 2016Date of Patent: January 22, 2019Assignee: Canon Kabushiki KaishaInventors: Seiji Ogasawara, Tetsuji Kurata, Masakazu Tsukuda, Takahide Onuma, Yasunori Saito
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Publication number: 20180339530Abstract: A platen includes: a supporting portion that can support a sheet; a suction unit that sucks the sheet in such a manner as to attach the sheet to the supporting portion; a first ink receiver that receives ink ejected downstream of the leading end of the sheet passing the supporting portion; and a second ink receiver that receives ink ejected upstream of the trailing end of the sheet passing the supporting portion.Type: ApplicationFiled: August 7, 2018Publication date: November 29, 2018Inventors: Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Takahide Onuma, Yasunori Saito, Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Patent number: 10071572Abstract: A platen includes: a supporting portion that can support a sheet; a suction unit that sucks the sheet in such a manner as to attach the sheet to the supporting portion; a first ink receiver that receives ink ejected downstream of the leading end of the sheet passing the supporting portion; and a second ink receiver that receives ink ejected upstream of the trailing end of the sheet passing the supporting portion.Type: GrantFiled: May 20, 2016Date of Patent: September 11, 2018Assignee: Canon Kabushiki KaishaInventors: Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Takahide Onuma, Yasunori Saito, Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Publication number: 20180015741Abstract: A platen includes: a plurality of supporting portions capable of supporting a sheet; negative pressure chambers, to which a negative pressure is supplied, so as to suck a sheet facing the supporting portions to the supporting portions; and ink receiver and that receive ink ejected from a printhead to the outside of the sheet supported by the supporting portions. The plurality of supporting portions are arranged in a sheet width direction (i.e., an X direction) transverse a sheet conveyance direction. The plurality of negative pressure chambers are disposed in a manner corresponding to the plurality of supporting portions, respectively.Type: ApplicationFiled: September 27, 2017Publication date: January 18, 2018Inventors: Takahide Onuma, Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Yasunori Saito
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Patent number: 9802426Abstract: A platen includes: a plurality of supporting portions capable of supporting a sheet; negative pressure chambers, to which a negative pressure is supplied, so as to suck a sheet facing the supporting portions to the supporting portions; and ink receiver and that receive ink ejected from a printhead to the outside of the sheet supported by the supporting portions. The plurality of supporting portions are arranged in a sheet width direction (i.e., an X direction) transverse a sheet conveyance direction. The plurality of negative pressure chambers are disposed in a manner corresponding to the plurality of supporting portions, respectively.Type: GrantFiled: May 20, 2016Date of Patent: October 31, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Takahide Onuma, Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Yasunori Saito
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Publication number: 20160347093Abstract: A printing apparatus includes: a suction unit configured to allow a negative pressure, by which a sheet is sucked to a supporting portion, to act on the sheet; and ink receivers and configured to receive ink ejected to the outside of the sheet. Waste ink ejected to the ink receiver is guided to a waste ink discharge port formed on an outer peripheral wall of a platen through waste ink channels. A sheet sucking mechanism configured to apply the negative pressure is disposed adjacent to the suction unit. A discharging mechanism configured to forcibly discharge waste ink outside of the platen is connected to the waste ink discharge port.Type: ApplicationFiled: May 20, 2016Publication date: December 1, 2016Inventors: Seiji Ogasawara, Tetsuji Kurata, Masakazu Tsukuda, Takahide Onuma, Yasunori Saito
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Publication number: 20160347092Abstract: A platen includes: a supporting portion that can support a sheet; a suction unit that sucks the sheet in such a manner as to attach the sheet to the supporting portion; a first ink receiver that receives ink ejected downstream of the leading end of the sheet passing the supporting portion; and a second ink receiver that receives ink ejected upstream of the trailing end of the sheet passing the supporting portion.Type: ApplicationFiled: May 20, 2016Publication date: December 1, 2016Inventors: Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Takahide Onuma, Yasunori Saito, Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
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Publication number: 20160347091Abstract: A platen includes: a plurality of supporting portions capable of supporting a sheet; negative pressure chambers, to which a negative pressure is supplied, so as to suck a sheet facing the supporting portions to the supporting portions; and ink receiver and that receive ink ejected from a printhead to the outside of the sheet supported by the supporting portions. The plurality of supporting portions are arranged in a sheet width direction (i.e., an X direction) transverse a sheet conveyance direction. The plurality of negative pressure chambers are disposed in a manner corresponding to the plurality of supporting portions, respectively.Type: ApplicationFiled: May 20, 2016Publication date: December 1, 2016Inventors: Takahide Onuma, Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Yasunori Saito
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Publication number: 20100173067Abstract: An apparatus includes a holding mechanism that holds a substrate, a material container where a film-forming material is gasified, a release port for releasing the gasified film-forming material toward the substrate; a material container heating unit for heating the material container, a transport pipe that is detachably linked to the material container by a linking portion and serves to transport the gasified film-forming material from the material container to the release port, a transport pipe heating unit for heating a remaining zone of the transport pipe other than a portion in a vicinity of the linking portion, and a linking portion heating unit that is disposed independently from the transport pipe heating unit and serves for heating the portion of the transport pipe in the vicinity of the linking portion.Type: ApplicationFiled: January 5, 2010Publication date: July 8, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Nobutaka Ukigaya, Kiyoshi Kuramochi, Takahide Onuma
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Publication number: 20090061084Abstract: In a vapor deposition method of forming a film of an organic compound on a substrate, a material containing portion filled with a vapor deposition material is heated, to thereby evaporate or sublimate the vapor deposition material and discharge the vapor deposition material to a film formation space of a vacuum chamber through a plurality of pipings connected to the material containing portion, and a piping having a smaller conductance among the pipings having different conductances is provided with a flow rate adjusting mechanism for controlling an amount of the vapor deposition material released into the vacuum chamber, whereby a film formation speed can be adjusted finely.Type: ApplicationFiled: August 18, 2008Publication date: March 5, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Takahide Onuma, Nobutaka Ukigaya, Takehiko Soda, Kiyoshi Kuramochi, Tomokazu Sushihara, Naohiro Nakane